Sep. 26 2:37 PM PT3:37 PM MT4:37 PM CT5:37 PM ET21:37 GMT5:37 AM 北京时间2:37 PM MST4:37 PM EST4:37 PM CT1:37 UAE (+1)17:37 ET - The Tampa Bay Buccaneers signed defensive end Jeff Charleston to fill a roster spot that opened when Adrian Clayborn was placed on injured reserve Wednesday. Clayborn is out for the season after hurting his right knee during last Sunday's 16-10 loss to the Dallas Cowboys.Analysis: Coach Greg Schiano said Wednesday that third-year pro Daniel Te'o-Nesheim will move into Clayborn's starting right end position.